Bone implant

Abstract

A bone implant made form a spongiform and/or cortical bone material of human or animal origin, comprises at least one surface region with several longitudinal adjacent drillings which do not extend through the bone implant.

1 . A bone implant of spongious and/or cortical bone material of human or animal origin, 
 in which at least one surface region ( 12 :  26 .  30 ) of the bone implant ( 10 ) has a plurality of elongate bores ( 14 ;  28 ,  32 ) arranged adjacently and not passing through the bone implant characterized in that    the surface region ( 12 ;  26 ) with bores ( 14 ;  28 ) extends up to a edge of the bone implant, with the bores ( 20 ) in the edge region being outwardly open and thereby forming a ribbed section ( 22 ,  24 ).    
   
   
       2 . A bone implant in accordance with  claim 1 , characterized in that the bores ( 14 ;  28 ,  34 ) are arranged in a matrix shape.  
   
   
       3 . A bone implant in accordance with  claim 1 , characterized in that the surface region with the bores ( 12 ;  26 ) forms a membrane section ( 14 ;  28 ).  
   
   
       4 . A bone implant in accordance with  claim 1 , characterized in that the maximum width of the bores ( 14 ;  28 ) lies between approximately 0.05 mm and approximately 2 mm.  
   
   
       5 . A bone implant in accordance with  claim 1 , characterized in that the depth of the bores ( 14 ;  28 ) lies between approximately 0.1 mm and approximately 10 mm.  
   
   
       6 . A bone implant in accordance with  claim 1 , characterized in that the spacing of adjacent bores ( 14 ;  28 ) is not larger than twice their maximum width.  
   
   
       7 . A bone implant in accordance with  claim 1 , characterized in that the surface region ( 12 ;  26 ) has between approximately 20 and 200 bores ( 14 ;  28 ) per cm 2 .  
   
   
       8 . A bone implant in accordance with  claim 4 , characterized in that the spacing of the bores ( 14 ;  28 ) lies between 0.01 mm and the maximum width of the bores.  
   
   
       9 . A bone implant in accordance with  claim 5 , characterized in that the axes of the bores ( 14 ;  28 ) are aligned substantially parallel.  
   
   
       10 . A bone implant in accordance with  claim 1 , characterized in that the bone material between the bores ( 14 ) is compact.  
   
   
       11 . A bone implant in accordance with  claim 1 , characterized in that the bone implant has a further surface region ( 30 ) into which further bores ( 32 ) have been introduced which each at least partly intersect at least one of the bores ( 28 ) in the surface region ( 26 ).  
   
   
       12 . A bone implant in accordance with  claim 11 , characterized in that at least one of the further bores ( 32 ) in the further surface region ( 30 ) at least partly intersects at least one of the bores ( 28 ) in the surface region ( 26 ) at an angle of approximately 90°.  
   
   
       13 . A bone implant in accordance with  claim 11 , characterized in that at least some of the further bores ( 32 ) and some of the bores ( 28 ) intersecting them in the surface region ( 26 ) are formed such that they form a grid of mutually connected bore passages ( 34 ,  36 ).  
   
   
       14 . A bone implant in accordance with  claim 1 , characterized in that the material of the bone implant consists of preserved and sterile bone material.